Pencil-sharpener.



G. BULLOCK.

` PENCIL SHARPENER. APPLICATION FILED MAY2s.|9|1.

Lmgm Patented May-21,191.8.

" following is a specilication.'

incarna.

GEORGE BUiiLocK, or GRAND JUNCTION, cciioRAzoo.

PENCIL-SHARPENER.

Specification of Letters Patent. Patented May gli, lltdlll.

Application led, May 25, 1917. Serial No. 170,819.

To all w-homfz' may concern: y

Be it known that I, GEORGE BUILOGK, a

.citizen of the United States, residing at the city of Grand Junction, .county of Mesa, and' State of Colorado, have invented a new and useful Pencil-Sharpener, of which the This invention -relate's to pencil sharpeners.

An object of the invention 'is to provide a pencilfsharpener that may, be conveniently carried inthe pocket andwlnch is provided v, with'means for retainin the pencil in connection therewith while in the pocket.

Another object of the linvention isto p rovide an improved pencil sharpener including abrading surfaces between which the pencil is moved and by Whiclrthe pencil is lgiven i the proper point, including a construction by which the abrading action is stopped by' contact of thel pencil point against` a part of 'the device when the pencil is properly sharpened.

Another object of the invention is to` prO-' vide a. pencil Sharpener adapted-to be cai ried in the pocket and to serve as a holder forpencils of ditlerent diameters.

Other objects will appear from vthe following description, in which I make reference to the accompanying drawing illustrating the preferred embodiment of the1 invention, in which drawings Figure 1 is a perspective view of 1ny iinproved pencil Sharpener illustrating the method of holding the same and sharpening a pencil thereby.

Fig. 2 is a side elevation of thepencil Sharpener with a pencil applied therein as a holder.

Fig. 3 is a view illustrating the blank from which the Sharpener is formed.

Fig. 4c is a. cross sectional view on the line -i-f-i'ofiiigi.

Fig. 5 is a view illustrating the point -produced on a pencil by use of my improved Sharpener. -1 A ln the embodiment illustrated the device A`is composed of a. single piece of sheet metal folded to provide two converging 'walls 1, and two approximately parallel walls Q which are in continuation of the walls l and between which th'e pencil is passed or inserted when it is to. be sharpened. The fold I 3 of the sheet metal is rounded so that the point of the pencil being sharpened will Contact with the inner surface. of the fold and thus stop or preventl further insertion soV than the first named serrations 4. The serrations 5, however, are not formed upon the rounded inner wallof the fold 3, the lat-ter being smooth so that when the point'of the pencil contacts therewith further insertion vof the pencil between the abrading walls 'is prevented.

By forming the Sharpener in this way the lead of the pencil will be taperedas illustrated at (ia in Fig. 5, but will be left with 'a blunt or rounded point. Thus the pencil is given a proper point for writing, but'the point is not sharply attenuated and will not easily break as in the case o f pencils sharpened by many of ,the sharpeneis now in use.

The blank from: which the device is formed is illustrated in Fig. 3 showing the.

two parallel seriesfof dentils or serrations 4 for cutting the woodl of the pencil and the two parallel series of smaller or finer dentils 0r serrations l5 for working on the lead of the pencil.l This view of the draw# ing also illustrates the blankV central space 6 between the two series of serrations 5 and which constitute the smooth inner Vsurface of the rounded fold ofthe Sharpener and serves as an abutment for the end of the l lead to prevent further insertion of the pencil after the proper point has been made.

Forrproperly bracing and strengthening the walls ofthe device, I provlde proper connections between- .said walls at the ends thereof. These connections inthe blank illustrated in Fig. 3, include an extension 7 on oncwall and an extension 8 on the other wall adapted to belfolded, as illustrated in Fig. l. The extension 7 is formed with a projecting portion?) adapted to be folded under the opposite wall vto support the same; and the extension 7 is provided with an additional projection 10 adapted to be exi cnded .over the, opposite. wallas illustrated in Fig. 1 to permit slight spreadingor movement of the walls away from each other to accommodate pencils of different diameters.v The extension El is formed with a pro jection 11, corresponding to the-projection 9, and with a projection l2 corresponding to the. projection l0 and similarly bent or folded to eoperate with the opposite wall.

These tw'o connections between the walls of 'the device prevent compressionof the walls vice it is protected by the walls between which it is mounted, and the point ofthe pencil being extended through the hole lllis Yprotected. and will not be broken without considerable violence.

The various corners of the -device are pref. erably rounded olf, as shown at l5 in Fig. 2, so that when the. device is carried inthe pocket it will not cut the cloth.

lnrusing the device the end of the pencil to be sharpened is inserted -between the walls 2 and is. revolved first .in one direction and then. in the other, at the same time being pressed int-o engagement with the serrations 4. The pencilI is revolved in opposite directions continuously until the bluntly pointed .end of the lead contacts with the smooth Wall 6 at the fold. Further cutting or abrasion isf then prevented and Vthe pencil is ready for-use. Tliefact that the walls 2 may be slightly sepa-rated within the limits permitted by the folded projections on the extensions 7 and' 8 permits the insertion and manipulation of hexagonal pencils, or other pencils slightly larger than the usual or standard sizes. f 1

Variations in the construction of the device may be made without departing from the scope of the inventiombut l do not restrict myself to the exact features of con struction and arrangement illustrated and described.

What l claim and desire to secure by Letters Patent is z- 1. A pencil Sharpener, comprising a single integral section of sheet metal having two parallel series of abrading dentils or serrations on one side thereof integral with a sinoothfsorface between said series, said section being folded along said smooth surface to provide two converffing'walls having the abrading dentils or serrations on their inner surfaces, and having the smooth surface aforesaid forming a smooth connection between said walls at their converging edges constituting anabutment 'for the point of the lead and limiting movement ofthe penV cil toward the converging edges of said walls while the pencil is being sharpened;

igeeefree and means for supporting' pencil between said walls parallel and out of contact with said dentils or serrations when the Sharpener is idle.

A. pencil sharpener, comprising a seo tion of sheet` metal having two parallel series of abradinom (lentils or serrations on one side thereof and a smooth surface between said series, said lsection being folded along said smooth surface to provide twov converging walls having the abrading dentils or serrations on their inner surfaces and having the smoothsurface aforesaid forn'iing a smooth connection between said walls, permitting movement of said walls toward and away from each other and constituting an abutment for the point of the lead and limiting movement of the pencil toward the converging edges of the walls while the pencil is being sharpened, and means limiting movement of said walls away from each other.

.3. A. pencil sharpener, comprising a single integral section of sheet metal having two parallel series of abrading dentils or serrations integral with one side thereof and a smooth surface between said series, said section being folded along said smooth surface to provide two converging walls having the abrading (lentils or serrations on their inner surfaces, and having the smooth surface aforesaid forming a smooth connection between said walls permitting -movement of said walls toward and away from eachother and. constituting an abutment for the' point of the lead and limiting movement of the pencil toward the converging edges of the walls while the pencil is'being sharpened, and means for supporting a pencil between said walls when the Sharpener is idle and for limiting movement ofy said walls toward each other when the sharpener is in use.

4. A pencil sharpener, comprising a single integral section of sheet metal having two parallel series of abra-ding dentils or serrations integral with one side thereof and a smooth surface between said series, said sections being folded along said smooth surface to provide two converging walls having the abrading dentils or serrations on their-inner surfaces, and having the. smooth surface aforesaid forming a smooth connection tween said walls permitting movement of said walls toward and awayfrom each other and constituting an abutment for the point of the lead and limiting moven'ient of the pencil toward the converging edges of the walls while the pencil is being sharpened, means limiting movement of said walls away from each other. and means limiting movement of both ends of said walls toward each other. y

A device of the character described,

. Comprising a section of sheet metal having two parallel series of abrading (lentils or serratlons for the wood on one side thereof and intatte lll also havihg two parallel series of finer abrading dentils or serrations for the lead y between the serrations for the wood',l and having a smooth surface between and separating the finer series of--dentils or serrations,

lo smooth surface aforesaid forming a smooth connection between said whlls 'at their, con* verging edges constituting an abutment for the point of the lead and limiting movement of the pencil toward the converging edges of saidV walls while the pencil is being sharp# vide two convergingr ened. 4

6. A device of the character described, comprising a section of sheet metal having two parallel series of abrading. dentils or serrations on one side thereof-and a smooth surface between said series, said section be# ing folded along said s ooth surface to proy/zilxls having the abrading dentils or s errations on their inner surfaces and having the smooth surface aforesaid forming a smooth connectionbetween said walls at -their converging edges vconstituting an abutment for the point ofthe lead and. limiting movement of the pencil toward thel converging edges yof said walls while the pencil is being sharpened', and two parallel walls extendin a; from said converging walls for guiding the pencil to be sharpened.l 7. A device of the character described, comprising two parallel walls having smooth inner surfaces for lguiding the pencil to be sharpened, two converging integrally united .walls in connection with'saidV parallel walls and being capable of movement toward and away from each other, means in connection with said parallel walls for limiting movement of both ends of said walls toward each other when the device is in use and arranged to support a pencil when the device is idle,- and abrading teeth or serrations on the inner surfaces of said convergingwalls. 8. A device of the character described, comprising two parallel 'w alls having smooth Sinner surfaces for` guiding the pencil to be sharpened, two converging integrally united walls in connection with said parallel walls and` being capable of movement toward and away from each other, a lateral extension in connection with one of said walls, a proj ection on said extension pro]ect1ng inwardly over the end of the other wall for limiting `movement of said walls away from each other, and abrading teeth or serratlons on l the inner surfaces of said converging walls.

9. A device of ,the character described, comprising a single section of sheet metal folded to lprovide two parallel walls and having smooth inner surfaces for guiding the pencil to he sharpened, two converging integrally united'walls in connection with said parallel wallsand beingv capable of movement toward and away from each other means limiting movement of said walls toward each other; means limiting movement of said walls away from each other;

and abradin'g teeth or serrations integral with the inner surfaces of said converging walls. i

l0. A device-of 'the character describe/d, comprising two parallel walls for guiding the pencil .to be sharpened, two converging integrally united walls in connection with said parallel walls, and abrading teeth or serrations on the inner surfaces of said converging walls.

l1. A device of the character described,

comprising tw'o parallel walls for guiding .l

the pencil to be sharpened and capable of spreading movement, means limiting the 4spreading movement of said, walls, two con verging integrally united walls in connection with said parallel walls, a'nd abrading teeth or serrations on the inner 'surfaces of said converging walls. i

12. A device of the character described, comprisng'two parallel walls capable of spreading movement', 'means limiting the -spreading movement of said walls, two converging integrally united walls in connection with said parallel walls, a-.series of abrading teeth or serrations for the'wood on the inner.

surface of each of said'lconverging walls, a

series of finer serrationg for the lead on the 4 inner surfaces of said converging walls near their line of convergence, and a smooth abutment surface for the point of the lead on the inner surface of the converging portion 'of said converging walls. v i

In witness whereof I have signed this specification.

GERGE BLLOCK.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

'Washington,` D. C. i l 

